// lib/widgets/global_mini_player.dart
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../services/audio_service.dart';
import '../main.dart';

class GlobalMiniPlayer extends StatelessWidget {
  const GlobalMiniPlayer({super.key});

  @override
  Widget build(BuildContext context) {
    // ⭐ 用 Selector 只监听 currentSong（低频变化）
    final song = context.select<AudioService, Song?>((s) => s.currentSong);
    // ⭐ 只监听播放状态（低频变化）
    final isPlaying = context.select<AudioService, bool>((s) => s.isPlaying);

    final bottomPadding = MediaQuery.of(context).padding.bottom;

    return Stack(
      clipBehavior: Clip.none,
      children: [
        Positioned(
          left: 0,
          right: 0,
          bottom: 0,
          child: Container(
            height: 56 + bottomPadding,
            color: const Color(0xFF1A1F1E),
          ),
        ),
        Positioned(
          left: 0,
          right: 0,
          bottom: bottomPadding,
          child: ClipRRect(
            borderRadius: const BorderRadius.vertical(
              bottom: Radius.circular(16),
            ),
            child: Container(
              height: 56,
              color: const Color(0xFF1A1F1E),
              child: Material(
                color: Colors.transparent,
                child: InkWell(
                  onTap: () {
                    if (song != null) {
                      navigatorKey.currentState?.pushNamed('/player');
                    }
                  },
                  highlightColor: Colors.white.withOpacity(0.05),
                  splashColor: Colors.white.withOpacity(0.1),
                  child: Row(
                    children: [
                      const SizedBox(width: 12),
                      Container(
                        width: 40,
                        height: 40,
                        decoration: BoxDecoration(
                          color: song != null
                              ? const Color(0xFF2A3332)
                              : Colors.grey[800],
                          borderRadius: BorderRadius.circular(4),
                        ),
                        child: Icon(
                          song != null ? Icons.music_note : Icons.music_off,
                          color:
                              song != null ? Colors.white38 : Colors.grey[600],
                          size: 20,
                        ),
                      ),
                      const SizedBox(width: 12),
                      Expanded(
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Text(
                              song != null ? song.title : '清听',
                              style: const TextStyle(
                                fontSize: 14,
                                fontWeight: FontWeight.w500,
                                color: Colors.white,
                                decoration: TextDecoration.none,
                              ),
                              maxLines: 1,
                              overflow: TextOverflow.ellipsis,
                            ),
                            Text(
                              song != null ? song.artist : '未播放',
                              style: TextStyle(
                                fontSize: 12,
                                color: song != null
                                    ? Colors.grey[400]
                                    : Colors.grey[600],
                                decoration: TextDecoration.none,
                              ),
                              maxLines: 1,
                              overflow: TextOverflow.ellipsis,
                            ),
                          ],
                        ),
                      ),
                      IconButton(
                        icon: Icon(
                          song != null && isPlaying
                              ? Icons.pause
                              : Icons.play_arrow,
                          color: song != null ? Colors.white : Colors.grey[600],
                          size: 24,
                        ),
                        onPressed: () {
                          if (song != null) {
                            context.read<AudioService>().togglePlay();
                          }
                        },
                      ),
                      IconButton(
                        icon: const Icon(
                          Icons.playlist_play_outlined,
                          color: Colors.grey,
                          size: 24,
                        ),
                        onPressed: () {
                          if (song != null) {
                            navigatorKey.currentState?.pushNamed('/playlist');
                          }
                        },
                      ),
                      const SizedBox(width: 4),
                    ],
                  ),
                ),
              ),
            ),
          ),
        ),
      ],
    );
  }
}